Graphene Moiré Supported Metal Clusters for Model Catalytic Studies

Habenicht, Bradley F.; Xu, Ye; Liu, Li

doi:10.1002/9781118691281.ch18

Cited by 2 publications

(2 citation statements)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Particularly, functionalized graphene has attracted tremendous interest in electrocatalysis due to its large specific surface area, excellent conductivity, various functional groups, and good chemical stability [42,43]. In a recent review on graphene-based electrocatalysts for ORR, the authors highlighted the heteroatom-doped graphene nanomaterials, graphene/nonprecious-metal and graphene/noble-metal nanocomposites [44].…”

Section: Introductionmentioning

confidence: 99%

A DFT study of oxygen reduction reaction mechanism over O-doped graphene-supported Pt4, Pt3Fe and Pt3V alloy catalysts

Jin

Han

Wang

et al. 2015

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

A DFT study of oxygen reduction reaction mechanism over O-doped graphene-supported Pt4, Pt3Fe and Pt3V alloy catalysts

Jin

Han

Wang

et al. 2015

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

“…[26] Hence the ability of a given nanomesh to induce the self-assembly of TM into dispersed nanoparticles varies from metal to metal. [36,37] Recent reports indicate that h-BN/Rh(111) in particular can drive the self-assembly of Au clusters with morphology, charging, and CO adsorption energies similar to catalytically active Au clusters grown on oxide supports. [27,38] The h-BN/Rh(111) nanomesh exhibits a periodicity of 3.2 nm, and adopts a pore-wire structure, in which a low-lying pore region are surrounded by high lying wire regions ( Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of transition metal adatoms on h-BN/Rh(111): Implications for nanocluster self-assembly

et al. 2017

Self Cite

View full text Add to dashboard Cite

The hexagonal boron nitride (h-BN) nanomesh is a promising 2D material for driving the selfassembly of metal nanoparticles with potential catalytic applications. Herein the adsorption of Au, Pt, Ag, Pd, Cu, and Ni adatoms on h-BN/Rh(111) is investigated using density functional theory (DFT) calculations to determine the ability of this pore-wire structure to facilitate the formation of size-limited, monodisperse metal nanoparticles. While all six metal atoms exhibit covalent coupling and negative charging following their adsorption in the pore region, only Au and Pt have sufficiently large diffusion barriers (> 1.2 eV) to prevent pore-to-pore diffusion at room temperature. In contrast, Ag and Cu have pore-to-pore diffusion barriers of only ~0.5 eV, while Pd and Ni show no special affinity for any specific region of the nanomesh. For verification, we have imaged Au, Pt, and Ag on h-BN/Rh(111) at room temperature and submonolayer depositions using STM. Au and Pt form numerous small nanoparticles confined to the pore regions, whereas Ag only forms a few large particles. The difference is fully consistent with the DFT predictions, indicating that our approach has the qualitatively predictive power for nanoparticle nucleation and growth behavior on the h-BN/Rh(111) nanomesh.

show abstract

Graphene Moiré Supported Metal Clusters for Model Catalytic Studies

Cited by 2 publications

References 88 publications

A DFT study of oxygen reduction reaction mechanism over O-doped graphene-supported Pt4, Pt3Fe and Pt3V alloy catalysts

A DFT study of oxygen reduction reaction mechanism over O-doped graphene-supported Pt4, Pt3Fe and Pt3V alloy catalysts

Adsorption of transition metal adatoms on h-BN/Rh(111): Implications for nanocluster self-assembly

Contact Info

Product

Resources

About